Header of harvester

Abstract

The utility model provides a header of a harvester. The header of the harvester comprises dividers used for distributing crops. The ear picking device is arranged below the dividers and conveys the distributed crops into the header for further treatment; the ear picking device comprises ear picking parts which are arranged side by side; each ear picking part comprises two seedling pulling chain groups; the seedling pulling chain group comprises a first seedling pulling device and a second seedling pulling device which are arranged up and down, and the first seedling pulling device is arranged above the second seedling pulling device through a double-layer chain wheel; the first seedling pulling device comprises a first gear, the first seedling pulling chain is connected with the first gear and the double-layer chain wheel, and the first tensioning device is arranged in the middle of the first seedling pulling device, connected with the first seedling pulling chain and used for adjusting the tightness of the first seedling pulling chain; the first seedling pulling device is arranged on the first mounting seat; the second seedling pulling device comprises a second gear, the second seedling pulling chain is connected with the second gear and the double-layer chain wheel, and the second tensioning device is arranged in the middle of the second seedling pulling device, is in tooth connection with the second seedling pulling chain and is used for adjusting the tightness of the second seedling pulling chain; and the second seedling pulling device is arranged on the second mounting seat.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a harvester cutting platform. Background Art

[0002] During the operation of existing harvesters, the tension of the harvesting table's rice chain will affect the harvesting efficiency. If the rice chain is not tensioned enough, that is, the rice chain is too loose, the contact length between the chain and the sprocket will be reduced, the transmission force will decrease, and the chain will jump teeth, shake, make abnormal noises, and even cause other related faults. When the rice chain is over-tensioned, the rotational resistance becomes larger, the corresponding bearing load increases, and the bearing heats up. In severe cases, the bearing will be damaged and the chain will become longer, which greatly affects the service life.

[0003] In the prior art, in order to make the tiller chain rotate smoothly, a tensioning structure is often designed in the tiller chain to adjust the tightness of the tiller chain. The tensioning structure is generally provided with springs on both sides, and the tiller chain is stretched in the direction of the springs on both sides by the springs to achieve the tension adjustment of the tiller chain. However, in order to increase the contact surface between the tiller chain and the crops, the harvester often uses an extended tiller chain to increase the contact area with the crops during the harvesting operation. The tensioning structure with springs on both sides cannot achieve the tightness adjustment of the extended part of the tiller chain.

[0004] Therefore, in order to realize the smooth rotation of the reed chain and improve the reliability of the harvester operation process, it is necessary to provide a harvester header to overcome the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide a harvester header to solve the problem of unreliable adjustment of the tightness of a reed chain in the prior art.

[0006] In order to solve the above technical problems, the utility model provides a harvester header, comprising

[0007] A crop divider, the crop divider is used to divide crops;

[0008] An ear picking device, the ear picking device is arranged below the crop divider, and transports the divided crops to the inside of the header for further processing; the ear picking device includes ear picking parts arranged side by side, the number of the ear picking parts is at least 2 groups, and each ear picking part includes two crop pulling chain groups; the crop pulling chain group includes a first crop pulling device and a second crop pulling device arranged above and below, and the first crop pulling device is arranged above the second crop pulling device through a double-layer sprocket;

[0009] The first reel-pulling device comprises a first gear, a first reel-pulling chain connects the first gear and the double-layer sprocket, a first tensioning device is arranged in the middle of the first reel-pulling device and connected to the first reel-pulling chain, and is used to adjust the tightness of the first reel-pulling chain; the first reel-pulling device is arranged on a first mounting seat;

[0010] The second reed-moving device comprises a second gear, a second reed-moving chain connects the second gear and the double-layer sprocket, a second tensioning device is arranged in the middle of the second reed-moving device and connected to the second reed-moving chain for adjusting the tightness of the second reed-moving chain; the second reed-moving device is arranged on a second mounting seat.

[0011] By respectively arranging the first tensioning device and the second tensioning device in the first straw-pulling device and the second straw-pulling device, the first straw-pulling chain and the second straw-pulling chain can be adjusted separately, the straw-pulling chain group rotates smoothly, and the operation reliability of the harvester is improved.

[0012] Preferably, the first tensioning device includes a first fixed seat, the first fixed seat is fixed on the first mounting seat, and the first fixed seat is connected to a first spring; the first fixed seat is connected to a first reel chain tensioning frame, and a tensioning nut is arranged on the first reel chain tensioning frame, and the tensioning nut is adjusted to control the tightness of the first spring, thereby driving the first reel chain tensioning frame to slide in the first reel device to adjust the tightness of the first reel chain.

[0013] Preferably, the first fixing seat comprises a first clamping seat, and one end of the first reel chain tensioning frame is slidably connected to the first clamping seat; the first fixing seat comprises a first spring seat, and the first spring is embedded in the first spring seat.

[0014] Preferably, the first reel chain tensioning frame is provided with a first fixing bolt, the first fixing bolt is connected to the first spring, and a first spring gasket is provided between the first fixing bolt and the first spring.

[0015] Preferably, the first reel chain tensioning frame is connected to the first gear.

[0016] By arranging the first tensioning device in the first reel-pulling device, the tightness of the first reel-pulling chain can be adjusted. In the first reel-pulling device, the chain rotates smoothly, and the operating stability of the first reel-pulling device is improved.

[0017] Preferably, the second tensioning device includes a second fixed seat, which is fixed on the second mounting seat; a second spring is arranged in the second fixed seat and connected to the second reel chain tensioning frame; a tensioning screw is connected to the second fixed seat, which is used to adjust the tightness of the second spring, thereby driving the second reel chain tensioning frame to slide in the second reel device to adjust the tightness of the second reel chain.

[0018] Preferably, the second fixing seat comprises a second clamping seat, and one end of the second reel chain tensioning frame is slidably connected to the second clamping seat; the second reel chain tensioning frame comprises a second spring seat, and the second spring seat abuts against one end of the second spring.

[0019] Preferably, the tensioning screw is adjusted to control the tightness of the second spring, and the second spring drives the second reel chain tensioning frame to slide in the second holder to adjust the tightness of the second reel chain; a second spring gasket is arranged between the tensioning screw and the second spring.

[0020] Preferably, second reed chain slots are provided at both ends of the second fixing seat to limit the movement of the second reed chain.

[0021] Preferably, the second reel chain tensioning frame is connected to the double-layer sprocket.

[0022] By arranging the second tensioning device in the second reed-pulling device, the tightness of the second reed-pulling chain can be adjusted, and the chain in the second reed-pulling device rotates smoothly.

[0023] The utility model provides a harvester header, which adjusts the tightness of the first and second grain pulling chains by installing a first tensioning device and a second tensioning device in the first and second grain pulling devices respectively. The second gear is a power gear, which is connected to the driving structure of the header, and provides power for the rotation of the entire grain pulling chain group while connecting the second grain pulling chain. With this structure, the stability of the power transmission of the grain pulling chain group is greatly improved, and the reliability of the harvesting operation of the harvester is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] Figure 1 A stereoscopic diagram of a harvester header provided in this embodiment.

[0026] Figure 2 A top view of the ear picking part of a harvester header provided in this embodiment.

[0027] Figure 3 An exploded view of a first straw-moving device of a harvester header provided in this embodiment.

[0028] Figure 4 An exploded view of a second straw-moving device of a harvester header provided in this embodiment.

[0029] Among them, 100-cutting platform; 1-grain divider; 2-ear picking device; 20-ear picking part; 200-grain pulling chain group; 210-first grain pulling device; 211-first grain pulling chain; 212-first gear; 213-first tensioning device; 2131-first fixing seat; 2131a-first clamping seat; 2131b-first spring seat; 2132-first spring; 2133-first grain pulling chain tensioning frame; 2133a-first fixing bolt; 2134-tensioning nut; 2135-first spring Spring gasket; 214-first mounting seat; 215-double-layer sprocket; 220-second straw-moving device; 221-second straw-moving chain; 222-second gear; 223-second tensioning device; 2231-second fixed seat; 2231a-second clamping seat; 2232b-second straw-moving chain clamping slot; 2232-second spring; 2233-second straw-moving chain tensioning frame; 2233a-second spring seat; 2234-tensioning screw; 2235-second spring gasket; 224-second mounting seat. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0032] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0033] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] See also Figures 1 to 4 As shown, the utility model provides a harvester header 100, including a grain divider 1, the grain divider 1 is used to divide crops; an ear picking device 2, the ear picking device 2 is arranged below the grain divider 1, and the divided crops are transported to the inside of the harvester for further processing; the ear picking device 2 includes ear picking parts 20 arranged side by side, the number of the ear picking parts 20 is at least 2 groups, and each ear picking part 20 includes two grain-pulling chain groups 200; the grain-pulling chain group includes a first grain-pulling device 210 and a second grain-pulling device 220 arranged up and down, and the first grain-pulling device 210 is arranged above the second grain-pulling device 210 through a double-layer sprocket 215;

[0037] The first reed-moving device 210 includes a first gear 212, a first reed-moving chain 211 connecting the first gear 212 and a double-layer sprocket 215, and a first tensioning device 213 disposed in the middle of the first reed-moving device 210 and connected to the first reed-moving chain 211, for adjusting the tightness of the first reed-moving chain 211; the first reed-moving device 210 is disposed on a first mounting seat 214;

[0038] The second weeding device 220 includes a second gear 222 . A second weeding chain 221 connects the second gear 222 and the double-layer sprocket 215 . A second tensioning device 223 is disposed in the middle of the second weeding device 220 and connected to the second weeding chain 221 for adjusting the tightness of the second weeding chain 221 . The second weeding device 220 is disposed on a second mounting seat 224 .

[0039] Specifically, the ear picking device 2 is connected to the straw divider 1 in the harvesting platform. After the straw divider 1 divides the crops, the straw chain group 200 in the ear picking device 2 divides the crops to the rear of the harvesting platform for further processing. The ear picking part includes more than two groups of ear picking parts 20, each ear picking part 20 is composed of two straw chain groups 200, and the straw chain group 200 includes a first straw device 210 and a second straw device 220 arranged up and down. The first straw device 210 is installed above the second straw device 220 through a double-layer sprocket 215. Usually, the first straw device 210 is an extension of the second straw device 220, and the purpose is to increase the contact area between the straw chain and the crops. The first straw device 210 is installed on the first mounting seat 214, and the second straw device 220 is installed on the second mounting seat 224. The first mounting seat 214 is fixedly connected to the second mounting seat 224. The second straw-pulling device 220 is the active part of the straw-pulling chain group 20. The second gear 222 in the second straw-pulling device is connected to the transmission part of the harvesting platform. The second gear 222 drives the double-layer sprocket 215 to rotate through the second straw-pulling chain 221, and then the first straw-pulling chain 211 connected to the double-layer sprocket 215 drives the first gear 212 to rotate. At this time, the entire straw-pulling chain group 20 forms a linkage, driving the crops to be transported to the rear of the harvesting platform. In order to improve the rotation stability of the straw-pulling chain group 20, by setting a first tensioning device 213 in the first straw-pulling device 10 and a second tensioning device 223 in the second straw-pulling device 220, the tightness of the first straw-pulling chain 211 and the second straw-pulling chain 221 can be adjusted, thereby improving the transmission reliability of the straw-pulling chain group 20, thereby improving the stability of the harvesting platform operation, and improving the reliability of the harvesting process of the harvester.

[0040] Preferably, the first tensioning device 213 includes a first fixed seat 2131, which is fixed on the first mounting seat 214, and the first fixed seat 2131 is connected to the first spring 2132; the first fixed seat 2131 is connected to the first straw chain tensioning frame 2133, and the tensioning nut 2134 is arranged on the first straw chain tensioning frame 2133, and the tensioning nut 2134 is adjusted to control the tightness of the first spring 2132, thereby driving the first straw chain tensioning frame 2133 to slide in the first straw device 210 to adjust the tightness of the first straw chain 211. The first tensioning device 213 adjusts the tightness of the first straw plowing chain 211 by adjusting the tensioning nut 2134. Specifically, the tensioning nut 2134 arranged on the first tensioning frame 2133 is adjusted by rotation to compress or extend the first spring 2132. The elastic force of the first spring 2132 generated by the rotation of the tensioning nut 2134 acts on the first straw plowing chain tensioning frame 2133, thereby driving the first straw plowing chain tensioning frame 2133 to slide in the first straw plowing device 210. Accordingly, since the first gear 212 is connected to the first straw plowing chain tensioning frame 2133, as the first straw plowing chain tensioning frame 2133 slides in the first straw plowing device 210, the first straw plowing chain 211 is adjusted in the sliding direction of the first straw plowing chain tensioning frame 2133.

[0041] Preferably, the first fixed seat 2131 includes a first clamping seat 2131a, and one end of the first reel chain tensioning frame 2133 is slidably connected to the first clamping seat 2131a; the first fixed seat 2131 includes a first spring seat 2131b, and the first spring 2132 is embedded in the first spring seat 2131b. In order to make the first spring 2132 have a better effect, the first spring seat 2131b is arranged on the first fixed seat 2131, and after adjusting the tensioning nut 2134, the first spring 2132 is deformed in the first spring seat 2131b to generate elastic force. The first clamping seat 2131a is arranged at the connection between the first fixed seat 2131 and the first mounting seat 214, and after one end of the first reel chain tensioning frame 2133 senses the elastic force of the first spring 2132, it slides in the first clamping seat 2131a to adjust the tightness of the first reel chain 211.

[0042] Preferably, the first reel chain tensioning frame 2133 is provided with a first fixing bolt 2133a, the first fixing bolt 2133a is connected to the first spring 2132, and a first spring washer 2135 is provided between the first fixing bolt 2133a and the first spring 2132. In order to achieve a better effect between the first fixing bolt 2133a and the first spring 2132, the first spring washer 2135 is provided, and the first spring washer 2135 can achieve a stable connection between the first fixing bolt 2133a and the first spring 2132, so that the force of the first spring 2132 acts on the first reel chain tensioning frame 2133 more effectively.

[0043] Preferably, the first reel chain tensioning frame 2133 is connected to the first gear 212 .

[0044] Preferably, the second tensioning device 223 includes a second fixing seat 2231, which is fixed on the second mounting seat 224; a second spring 2232 is disposed in the second fixing seat 2231 and connected to the second reel chain tensioning frame 2233; a tensioning screw 2234 is connected to the second fixing seat 2231 and is used to adjust the tightness of the second spring 2232, thereby driving the second reel chain tensioning frame 2233 to slide in the second reel device 220 to adjust the tightness of the second reel chain 221. Specifically, the second fixing seat 2231 of the second tensioning device 223 is mounted on the second mounting seat 224, and the tensioning screw 2234 connected to the second fixing seat 2231 is adjusted to deform the second spring 2232 disposed in the second fixing seat 2231 and generate elastic force. The second spring 2232 is connected to the second reel chain tensioning frame 2233. The elastic force generated by the deformation of the second spring 2232 acts on the second reel chain tensioning frame 2233. The second reel chain tensioning frame 2233 slides in the second reel device 220 according to the elastic force change of the second spring 2232 to adjust the tightness of the second reel chain 221.

[0045] Preferably, the second fixed seat 2231 includes a second clamping seat 2231a, and one end of the second reel chain tensioning frame 2233 is slidably connected to the second clamping seat 2231a; the second reel chain tensioning frame 2233 includes a second spring seat 2233a, and the second spring seat 2233a abuts against one end of the second spring 2232. The second clamping seat 2231a is provided at the connection between the second fixed seat 2231 and the second mounting seat 224, and the second reel chain tensioning frame 2233 slides in the second clamping seat 2231a, and the second reel chain 221 is adjusted in the moving direction of the second reel chain tensioning frame 2233.

[0046] Preferably, the tensioning screw 2234 is adjusted to control the tightness of the second spring 2232, and the second spring 2232 drives the second reel chain tensioning frame 2233 to slide in the second clamping seat 2231a to adjust the tightness of the second reel chain 221; a second spring washer 2235 is arranged between the tensioning screw 2234 and the second spring 2232. In order to make the tensioning screw 2234 better act on the second spring 2232, the second spring washer 2235 is arranged between the tensioning screw 2234 and the second spring 2232 to increase the force bearing area.

[0047] Preferably, second chain slots 2231b are provided at both ends of the second fixing seat 2231 to limit the movement of the second chain 221. To prevent the second chain 221 from sliding during movement, the second chain slots 2231b are used to further limit the displacement of the second chain 221 and the second mounting seat 214 in the vertical direction.

[0048] Preferably, the second reel chain tensioning frame 2233 is connected to the double-layer sprocket 215 .

[0049] The present application adjusts the tightness of the first and second straw chains 211 and 221 by installing the first and second straw chains 213 and 223 in the first and second straw chains 210 and 220, respectively. The second gear 222 is a power gear connected to the drive structure of the harvesting platform, and provides power for the rotation of the entire straw chain group 200 while connecting to the second straw chain 221. With this structure, the stability of the power transmission of the straw chain group 200 is greatly improved, and the reliability of the harvesting operation of the harvester is improved.

[0050] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A harvester header, characterized in that: include A crop divider, the crop divider is used to divide crops; An ear picking device, the ear picking device is arranged below the crop divider, and transports the divided crops to the inside of the header for further processing; the ear picking device includes ear picking parts arranged side by side, the number of the ear picking parts is at least 2 groups, and each ear picking part includes two crop pulling chain groups; the crop pulling chain group includes a first crop pulling device and a second crop pulling device arranged above and below, and the first crop pulling device is arranged above the second crop pulling device through a double-layer sprocket; The first reel-pulling device comprises a first gear, a first reel-pulling chain connects the first gear and the double-layer sprocket, a first tensioning device is arranged in the middle of the first reel-pulling device and connected to the first reel-pulling chain, and is used to adjust the tightness of the first reel-pulling chain; the first reel-pulling device is arranged on a first mounting seat; The second reed-moving device comprises a second gear, a second reed-moving chain connects the second gear and the double-layer sprocket, a second tensioning device is arranged in the middle of the second reed-moving device and connected to the second reed-moving chain for adjusting the tightness of the second reed-moving chain; the second reed-moving device is arranged on a second mounting seat.

2. A harvester header as claimed in claim 1, characterized in that: The first tensioning device includes a first fixing seat, which is fixed on the first mounting seat and connected to a first spring; the first fixing seat is connected to a first reel chain tensioning frame, and a tensioning nut is arranged on the first reel chain tensioning frame. The tensioning nut is adjusted to control the tightness of the first spring, thereby driving the first reel chain tensioning frame to slide in the first reel device to adjust the tightness of the first reel chain.

3. A harvester header as claimed in claim 2, characterized in that: The first fixing seat comprises a first clamping seat, and one end of the first reed chain tensioning frame is slidably connected to the first clamping seat; the first fixing seat comprises a first spring seat, and the first spring is embedded in the first spring seat.

4. A harvester header as claimed in claim 3, characterized in that: The first reel chain tensioning frame is provided with a first fixing bolt, the first fixing bolt is connected to the first spring, and a first spring gasket is provided between the first fixing bolt and the first spring.

5. A harvester header as claimed in claim 4, characterized in that: The first reel chain tensioning frame is connected to the first gear.

6. A harvester header as claimed in claim 1, characterized in that: The second tensioning device includes a second fixed seat, which is fixed on the second mounting seat; a second spring is arranged in the second fixed seat and connected to the second reel chain tensioning frame; a tensioning screw is connected to the second fixed seat, which is used to adjust the tightness of the second spring, thereby driving the second reel chain tensioning frame to slide in the second reel device to adjust the tightness of the second reel chain.

7. A harvester header as claimed in claim 6, characterized in that: The second fixing seat comprises a second clamping seat, and one end of the second reel chain tensioning frame is slidably connected to the second clamping seat; the second reel chain tensioning frame comprises a second spring seat, and the second spring seat abuts against one end of the second spring.

8. A harvester header as claimed in claim 7, characterized in that: The tensioning screw is adjusted to control the tightness of the second spring, and the second spring drives the second reel chain tensioning frame to slide in the second clamping seat to adjust the tightness of the second reel chain; a second spring gasket is arranged between the tensioning screw and the second spring.

9. A harvester header as claimed in claim 8, characterized in that: Second reel chain clamping grooves are arranged at both ends of the second fixing seat to limit the movement of the second reel chain.

10. A harvester header as claimed in claim 9, characterized in that: The second reed chain tensioning frame is connected to the double-layer sprocket.

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